Home / 11,387.63-16,968.24-10,145.50

Finding the Fourth Proportional to 11,387.63, 16,968.24 and 10,145.50

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Solution

The fourth proportional to 11,387.63, 16,968.24 and 10,145.50 is: 15,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.63 : 16,968.24 = 10,145.50 : x
  2. Step 2: Convert to fraction form
    11,387.63/16,968.24 = 10,145.50/x
  3. Step 3: Cross multiply
    11,387.63x = 16,968.24 × 10,145.50
  4. Step 4: Simplify right side
    11,387.63x = 172,151,278.92
  5. Step 5: Solve for x
    x = 172,151,278.92/11,387.63
  6. Step 6: Final answer
    x = 15,117.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.